On 28/04/16 11:38, Shawn Lin wrote:> commit 61b914eb81f8 ("mmc: sdhci-of-arasan: add phy support for> sdhci-of-arasan") introduce phy support for arasan. According to> the vendor's databook, we should make sure the phy is in poweroff> status before we configure the clk stuff. Otherwise it may cause> some IO sample timing issues from the test. And we don't need this> extra operation while running in low performance mode since phy> doesn't trigger sampling block.> > Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>